react-native/RNTester/js/ClipboardExample.js
Rick Hanlon bd32234e6e Add flow types RNTester examples (#22829)
Summary:
This PR adds flow types for the RNTester examples, and updates all of the RNTester examples to match the flow type consistently.

Previously, there was a mix of static class definitions and whether or not pages exported examples or a component. Now we will always export the same way, enforced by flow types

Note: I also fixed most of the $FlowFixMe in changed components
Pull Request resolved: https://github.com/facebook/react-native/pull/22829

Reviewed By: cpojer

Differential Revision: D13563191

Pulled By: rickhanlonii

fbshipit-source-id: b697e3346a863d1b130881592b0522a96c202b63
2018-12-31 08:30:54 -08:00

69 lines
1.4 KiB
JavaScript

/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
* @flow strict-local
*/
'use strict';
const React = require('react');
const ReactNative = require('react-native');
const {Clipboard, View, Text, StyleSheet} = ReactNative;
type Props = $ReadOnly<{||}>;
type State = {|
content: string,
|};
class ClipboardExample extends React.Component<Props, State> {
state = {
content: 'Content will appear here',
};
_setClipboardContent = async () => {
Clipboard.setString('Hello World');
try {
const content = await Clipboard.getString();
this.setState({content});
} catch (e) {
this.setState({content: e.message});
}
};
render() {
return (
<View>
<Text onPress={this._setClipboardContent} style={styles.label}>
Tap to put "Hello World" in the clipboard
</Text>
<Text style={styles.content}>{this.state.content}</Text>
</View>
);
}
}
const styles = StyleSheet.create({
label: {
color: 'blue',
},
content: {
color: 'red',
marginTop: 20,
},
});
exports.title = 'Clipboard';
exports.description = 'Show Clipboard contents.';
exports.examples = [
{
title: 'Clipboard.setString() and getString()',
render() {
return <ClipboardExample />;
},
},
];